4. Presente Perfect

A. When To use '' Present Perfect'' 

The present perfect is used in the English language to narrate events that haveoccurred in an unspecified time in the past and may or may not be continuing in the present. The verb in present perfect or present perfect in English, is constructed with the auxiliary verb have or has, if third person, he, she, it, plus the participle of the verb, past participle

B. __________


C.Example  

• I have been planning my weekend ahead.
• He has been walking the whole day
• Have you been playing tennis?
• Have you been studying this weekend?
• I've worked all this week 

D. Questions

• Have you been doing my homework all day

     S+A = Yes, I have been doing my homework all day 
     S-A = No, I haven't been  doing my homework all day  
     L+A = yes, I have been doing 
     L-A = No, I haven't doing .